Display panel, display device, input/output device, and data processing device

Abstract

A novel display panel that is highly convenient or reliable is provided. The display panel includes a display region, a first functional layer, and a second functional layer. The display region includes a pixel, and the pixel includes a display element and a pixel circuit. The first functional layer includes the pixel circuit, a scan line, and a first connection portion. The display element is electrically connected to the pixel circuit, and the pixel circuit is electrically connected to the scan line. The second functional layer includes a region overlapping with the first functional layer, the second functional layer includes a driver circuit and a wiring, and the driver circuit is provided so that the pixel circuit is positioned between the driver circuit and the display element. The wiring is electrically connected to the scan line at the first connection portion, and the wiring is electrically connected to the driver circuit.

The invention claimed is: 
     
       1. A display panel comprising:
 a display region; 
 a first functional layer; 
 a second functional layer; 
 a first connection portion; and 
 a terminal, 
 wherein the display region comprises a pixel, 
 wherein the pixel comprises a display element and a pixel circuit, 
 wherein the first functional layer comprises the pixel circuit, a scan line, a signal line, an auxiliary signal line, and a second connection portion, 
 wherein the display element is electrically connected to the pixel circuit, 
 wherein the pixel circuit is electrically connected to the scan line, 
 wherein the signal line is electrically connected to the pixel circuit, 
 wherein the second functional layer comprises a region overlapping with the first functional layer, 
 wherein the second functional layer comprises a driver circuit and a first wiring, 
 wherein the driver circuit is provided so that the pixel circuit is positioned between the driver circuit and the display element, 
 wherein the first wiring is electrically connected to the scan line at the first connection portion, 
 wherein the first wiring is electrically connected to the driver circuit, 
 wherein the signal line is electrically connected to the auxiliary signal line at the second connection portion, 
 wherein the auxiliary signal line comprises a region intersecting another signal line, and 
 wherein the auxiliary signal line is electrically connected to the terminal. 
 
     
     
       2. The display panel according to  claim 1 ,
 wherein the first wiring comprises a region intersecting the signal line. 
 
     
     
       3. The display panel according to  claim 1 ,
 wherein the pixel comprises a switch, a transistor, and a capacitor, 
 wherein the transistor comprises a source electrode and a drain electrode, 
 wherein one of the source electrode and the drain electrode is electrically connected to the display element, 
 wherein the other of the source electrode and the drain electrode is electrically connected to a second wiring, and 
 wherein the second wiring comprises a region intersecting the auxiliary signal line. 
 
     
     
       4. A display device comprising:
 the display panel according to  claim 1 ; and 
 a control portion, 
 wherein the control portion is supplied with image data and control data, 
 wherein the control portion generates data on the basis of the image data, 
 wherein the control portion generates a control signal on the basis of the control data, 
 wherein the control portion supplies the data and the control signal, 
 wherein the display panel is supplied with the data and the control signal, 
 wherein the driver circuit operates on the basis of the control signal, and 
 wherein the pixel performs display on the basis of the data. 
 
     
     
       5. An input/output device comprising:
 an input portion and a display portion, 
 wherein the display portion comprises the display panel according to  claim 1 , 
 wherein the input portion comprises a sensing region, 
 wherein the input portion senses an object approaching the sensing region, and 
 wherein the sensing region comprises a region overlapping with the pixel. 
 
     
     
       6. A data processing device comprising:
 one or more of a keyboard, a hardware button, a pointing device, a touch sensor, an illuminance sensor, an imaging device, an audio input device, an eye-gaze input device, and an attitude detection device, and the display panel according to  claim 1 .